bio_add_pc_page

Langue: en

Autres versions - même langue

Version: June 2009 (debian - 07/07/09)

Section: 9 (Appels noyau Linux)

Sommaire

NAME

bio_add_pc_page - attempt to add page to bio

SYNOPSIS

int bio_add_pc_page(struct request_queue * q, struct bio * bio, struct page * page, unsigned int len, unsigned int offset);

ARGUMENTS

q

the target queue

bio

destination bio

page

page to add

len

vec entry length

offset

vec entry offset

DESCRIPTION

Attempt to add a page to the bio_vec maplist. This can fail for a number of reasons, such as the bio being full or target block device limitations. The target block device must allow bio's smaller than PAGE_SIZE, so it is always possible to add a single page to an empty bio. This should only be used by REQ_PC bios.